Valve-grinder



W. C. BROWN.

VALVE GRINDER. APFLICATION FILED OCT-20l I911. 1,314,85 1. PatentedSept. 2, 1919.

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4 i L9 3 s 10 a I I .1 13 .J 2 1 WILLIAM 0. BROWN, OF NILES, OHIO.

VALVE-GRINDER.

Specification of Letters Patent.

Patented se ta, 1919.

Application filed October 20, 1917. Serial No. 197,790.

To all whom it may concern.-

- Be-it known that I, WILLIAM 0. BROWN, a citizen of the United Statesof America, residing at Niles, in the county of Trumbull and State ofOhio, have invented certain new and useful Improvements in Valve-Grinders, of which the following is a specification.

My present invention relates to improvements invalve-grinders for useon. internal combustion engines and motors in general; and specificreference is hereby made to Letters Patent No. 1,150,874, of Aug. 24,1915, issued to Morris, et aL, of which I am the sole licensee (ofrecord), and I herein claim nothing protected by said patent.

My improvement consists of elements to be easily assembled and,temporarily, operatively located in position to grind the valves of suchengines when built with either removable caps or heads; and the objectsof my invention are, first, so to do; second to greatly reduce thenumber of working parts and the cost thereof; third to shorten the timerequired to grind the valves; and, fourth, to enable the operator togrind one or a plurality at a single operation, as required.

I accomplish those objects by the mecha nism described in the followinspeeification, clearly expressed in the c aims, and illustrated 1n thedrawings, in which- Figure 1 shows in elevation a portion of the housingof an explosive engine, in part broken away, with a cylinder and a valveand one form of my invention attached.

Fig. 2 is a top plan view of the engine with head H removed.

Fig. 3 is a plan .of a bar and an elevation of a rivet, as used in myinvention, and

Fig. 4 shows an element described.

Fig. 5 illustrates a modification, and Fig. 6 shows my invention as usedin series.

Like characters refer to similar parts throughout the several views.

Most explosive or combustion engines have a head H, within which arelocated cylinders O, with piston heads and piston rods operativelyconnected with a crank shaft by pitmen; and in Fig. 1 I have shown onewhich has a cover or top, T, also shown in Fig. 2; and to which top isbolted a removable head, H, which covers the as chamber G, the cylindersand certain ot er of the working elements and wirings, and into whichare screwed the spark plugs 1,1.

hole 7, through it (Fig. 4); and a horizontalbase 8 having a slot 9.

The head H having been removed the sup- 7 port 6 is fastened to the top,T, by a screw 4 through the slot 9 and hole 3 after the stem 10 (Fig. 1)has been passed through hole 7 of the arm 6".

Thereupon the screw driver edge 11 at the base of the stem 10 fits intoa kerf 12, in the valve head 5.

A handle 14 having a square hole 15, is then placed on the end of thestem 10 and by means of it the operator can oscillate the valve head 5in the valve seat 2, with or without rouge or the like, until that valveis true.

In order to save the operator from the necessity of manually retainingthe grinding parts in contiguous relation, I introduce a spiral spring,S, coiled about the stem 10, and below an annular enlargement 16thereon, which threads into the hole 7 (Figs. 1 and 4), which springserves to press the grinding parts together evenly.

To grind the valve 2 the support 6 may be located and held by the screw4 through the hole 13; and then turned to grind the next valve,comprising seat 2 and a corresponding valve head 5, valves 2" and 2 etc.

When it is desired to be grinding more than one valve at a time Iprovide a bar 17 Figs. 3 and 6 with a plurality of holes, 18, 18, andloose rivets 20. A series of supports 6, 6, etc., having been locatedwith a series of edges 11, 11, fitting into kerfs 12', 12, of severalvalves, each support being equipped with its handle 14, 14, etc., thebar 17 is laid on top of them all and rivets 20, 20, dropped through theholes 18, 18 which correspond to the several holes 19, 19 of thehandles; whereupon a forward and backward movement given to the bar 17,oscillates all of the grlnding valve heads in their respective valveseats.

On engines which do not have tops- T,

a the valve heads are exposed and covered by a removable threaded cap[similar to the plug 21 shown in F ig. 5, but usually slightly v largerin' diameter than the threaded holes .7 infthe arm 6. a

i To grind those I provide a special plug 21:01 the right size andthread, .as shown 7' equipped with stem 10,-thread 16, a spring lsandzan-edge 11, which temporarily replaces the plug that comeswith theengine, and is reciprocated oroscillated by the 1 On. this modificationa plurality of plugs 1(21) are; used and their respective handles 1 letare operated conjointly and sirnultasired to a time: 7

; l' clai-m I purpose set-forth, V

In testlm ony whereof v I afiix my signature 7 1."Thearcornbination of aplurality of valve grinders of the kind described,' hav.-V

111g individual oscillatory handles with supplemental holestherethroughywith an operatingbar having a corresponding-plurality ofholes and a plurality of removable locking elements fitting said holes,for the purpose set forth.

'2. In a device of the kind described 'for grinding :valves ofcombustion engines and having operatinghandles with holes there- 7through; a removable element'consistingvof a bar with a pluralityof'aprop'erlyz spaced ,holeswtherethrough and removable rivets V fittingsaid holes in'saidele'ment. and han-' dles, Ias shown and idescribedland: {for the in the presence of two witnesses.

, ILLIA BROWN. 7 V Witnesses- 7 .PLBETHUNE', 1 a

V M. PUERNER."

I 7 Copies ;.of-this' patent may 15 obtained'for five-centsejachybyiaddressingithei conlimissioner of i atents,

Washington, D. G.

